sctp_app1.cc
上传用户:rrhhcc
上传日期:2015-12-11
资源大小:54129k
文件大小:4k
- /* -*- Mode:C++; c-basic-offset:8; tab-width:8; indent-tabs-mode:t -*- */
- /*
- * Protocol Engineering Lab, U of Delaware
- * Janardhan Iyengar <iyengar@@cis,udel,edu>
- *
- * This SCTP test application is a modified version of the telnet code
- * developed by the University of California. The original copyright is below.
- */
- /*
- * Copyright (c) 1997 Regents of the University of California.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by the Daedalus Research
- * Group at the University of California Berkeley.
- * 4. Neither the name of the University nor of the Laboratory may be used
- * to endorse or promote products derived from this software without
- * specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * @(#) $Header: /cvsroot/nsnam/ns-2/apps/sctp_app1.cc,v 1.1 2003/08/21 18:25:59 haldar Exp $ */
- #include "random.h"
- #include "sctp.h"
- #include "sctp_app1.h"
- extern double tcplib_telnet_interarrival();
-
- AppData_S *data_to_transport = NULL;
- static class SctpApp1Class : public TclClass {
- public:
- SctpApp1Class() : TclClass("Application/SctpApp1") {}
- TclObject* create(int, const char*const*) {
- return (new SctpApp1);
- }
- } class_app_sctp;
- SctpApp1::SctpApp1() : running_(0), timer_(this)
- {
- bind("interval_", &interval_);
- bind("numUnreliable_", &numUnreliable);
- bind("numStreams_", &numStreams);
- bind("reliability_", &reliability);
- }
- void SctpApp1Timer::expire(Event*)
- {
- t_->timeout();
- }
- void SctpApp1::start()
- {
- running_ = 1;
- double t = next();
- timer_.sched(t);
- }
- void SctpApp1::stop()
- {
- running_ = 0;
- }
- void SctpApp1::timeout()
- {
- if (running_) {
- data_to_transport = new AppData_S;
- memset(data_to_transport, 0, sizeof(AppData_S));
- data_to_transport->usNumStreams = numStreams;
- data_to_transport->usNumUnreliable = numUnreliable;
- data_to_transport->usReliability = reliability;
- data_to_transport->uiNumBytes = 257;
- agent_->sendmsg(agent_->size(), (char*)data_to_transport);
- /* reschedule the timer */
- double t = next();
- timer_.resched(t);
- }
- }
- double SctpApp1::next()
- {
- if (interval_ == 0)
- /* use tcplib */
- return tcplib_telnet_interarrival();
- else
- return Random::exponential() * interval_;
- }